Q:

What is crush and run gravel?

A:

Quick Answer

Crush and run gravel, also known as crusher run, is a type of gravel that is commonly used in places where motor vehicles are often driven or parked. Crush and run gravel is widely used for constructing driveways because the gravel, which is a mixture of stone powder and small crushed stone, retains the strength of the top layer of the driveway, making it durable.

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Full Answer

There are various types of gravel, also known as crushed stone, used for constructing driveways and walkways. Crushed stone with large size particles is known as ballast and it is very useful in supporting railways roads. Using this type of crushed stone, the rails can be constructed at very precise elevations, which results in a very smooth roadbed and therefore a smooth journey for users.

Crushed stone is available in particles of different sizes from 1/4 inch up to about 2 1/2 inch, and they are all suitable for the construction of driveways. In the United States, the sizes of crushed stones have been given a numbering system by the American Society of Testing and Materials, and the commonly used sizes for the construction of driveways are number 2 and number 57, with an equivalent diameter of 2 1/2 inches and 3/4 to 1 inch respectively.

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